Portable glue sealers for carton bottoms



SPt-A 24, 1963 c. VAN HoUDEN KING, JR., ETAL 3,104,597

PORTABLE GLUE sEALERs FOR CARTON BoTToMs Filed may 29, 1962 5 sheets-sheet 1 dsa INV ENTORS CLARENCE VAN HOUDEN KING/.JRl

JOHN W. MARC-RAF BY A 7' TO/PNEV Sept. 24, 1963 c. vAN HOUDEN KING, JR..s ETAL 3,104597 PORTABLE GLUE SELERS FOR CARTON BOTTOMS Filed May 29, 1962 5 Sheets-Sheet 2 INVENTORS JOHN W MARGRAF A 7` TOPNV CLARENCE VAN HOUDEN KING, JR.

Sept. 24, 1963 c. VAN HOUDEN KING, JR., ETALv 3,104,597

PORTABLE GLUE sEALERs RoR CARTON BoTToMs Filed May 29, 1962 5 Sheets-Sheet 5 INVENTORS l CLARENCE VAN HOUDEN PONG/,JR

JOHN VV\ MARC-:RAF *l BY /LMq gina-J M Sept. 24, 1963 c. VAN HOUDEN K1NG,JR., ETAL I 3,104,597'

PORTABLEAGLUE sEALERs FOR CARTON BoTToMs 5 Sheets-Sheet 4 Filed May 29, 1962 INVENTORS CLARENCE VAN HOUDEN KIN Il Lt.

@,JR. W. MARGRAF JOHN M14-An,

A T TO/PNEV Sept. 24, 1963 c. VAN HOUDEN KING, JR., ETAI. 3,104,597

PORTABLE GLUE sEALERs FoR CARTON BoTToMs 5 Sheets-Sheet 5 Filed May 29, 1962 INVENTORS CLARENCE VAN HOUDEN KING, JR

`JOHN w MARGRAF United Erstes Patent G 3,104,597 PORTABLE GLUE SEALERS FOR CARTN BTTGMS Clarence Van Houden King, Jr., Carmel, and John W.

Margret, Salinas, Calif., assignors to A. H. L. Klemme,

East St. Louis, iii.

Filed May 29, 1962, Ser. No. 198,501 S Claims. (Cl. 93-441) This invention relates to equipment which is used for 4the bottom sealing of carton aps and particularly to a small machine using glue for the sealing, which is capable of being moved from place to piace as required, -both in the plant and `out of the plant. The movement and portability of the machine `does not entail the disassembly after use and the reassembly for use at the new location.

Heretofore the method of securing .the bottom ilaps or corrugated -cartons has been by means of metal staples or stitchers. The various Federal and State laws land regulations pertaining to shipping cartons specify the number of staples required for a particular Ause and normally from six to twelve staples Iare required for even the most modest use. Such 4bottom closing of cartons becomes expensive and requires extra handling with the result lthat the carton expense prior to the time of packing is excessive.

Staples are dangerous .because they loosen with use and upon loosening, or when they .are incorrectly set, they expose Sharp edges which cut the hands of the package handlers.

The machine of the present invention offers many advantages lover the stitch closing of the carton bottom and one advantage is that it is considerably faster, requiring only one operation as against three or perhaps four, for the stitchers. Also, the sealed 'cartons cost is less in two particulars. In the first place, they glue used for sealing costs less than wire or staples and in the second place, the labor to accomplish the sealing is one-third to one-fourth that of the stitching operation. In addition, there is less upkeep to the machine of the pres-ent invention as compared with stitchers because breakdowns are less frequent and less involve-d. The machine of the present invention is much less complicated than stitchers, having less moving parts and less involved `and critical motions. A very important advantage is that the glue sealed cartons `are some twenty-seven percent stronger than stitched cartons.

It is recognized that there are extant machines for glue sealing car-ton bottoms lbut these are very large machinesv which require considerable iioor space because of their length. Also, they are heavy pieces of equipment weighing not less than 1600 pounds.

The machine of the present invention Weighs only some 400 pounds and can easily be moved by a fork lift or skidded behind a small tractor. l

It is smaller in over-all dimensions having a height of only -Sorne 40 inches, a length of some 37 inches and a width of less than 40 inches. It is an all electric machine requiring no vacuum pump or `compressor and therefore eliminates the troublesome matters attendant on air or vacuum lines and valves. It is apparent that the machine of the present invention costs only a fraction of the cost of the larger machines rand therefore is economic for situations which could not possibly be served by the larger machines. Perhaps one of the greatest advantages lies in the fact that the machine of the present invention has `a throughput capacity which is the equal of or greater than that of the very large machines. In addition, the repairs and upkeep are minimal with the machine of the present invention and requires practically no down time las compared with the specially built large machines currently in use.v

A particular advantage of the present invention is that no take-oil mechanism is required las all take-ott of bottom sealed cartons is by gravity. In this manner a large amount of special equipment ancillary to the machine itself is eliminated.

Further objects are to provide ia construction of maximum simplicity, economy and ease ot `assembly and disassembly, also such further objects, advantages and can abilities yas will fully appear and .as are inherently possessed 'by the device and invention described herein.

The invention further resides in the combination, construction iand arrangement of parts illustrated in the accompanying drawings, and while there is `shown therein a preferred embodiment thereof, it is to be understood that the same is illustrative of the invention and that the invention is capable of modication and change and comprehends other details of construction without departing from the spirit thereof or the scope of the .appended claims.

In the drawings:

`FIGURE 1 is la side elevational View of the lefthand side ofthe machine as gauged by the operator who stands 'to the right and faces to the left in FIGURE l;

FIGURE 2 is an end elevational view of the machine looking from right to left in FIGURE l and is the View from the operators end;

FIGURE 3 is a detail of the bottom side flap closing Iand holding means taken on the line III-III of FIG- URE l, looking in the direction of the arrows;

FIGURE 4 is ra Idetail or Ithe main cam;

FIGURE 5 is a fragmentary top plan View, partly in section, taken along the line V-V of FIGURE 4 and looking in fthe direction of the arrows;

FIGURE 6 is a detail of one of the carton mandrels partly in elevation and partly in section;

FIGURE 7 is -a fragmentary detail of the mandrel and .guide taken on the line VII-VII of FIGURE 6;

FIGURE 8 is a fragmentary diagrammatic illustration showing the Igluing of the outer face of the carton end aps and compensating for the dilference in radius of the various portions of the carton bottom during thisk operation;

FIGURE 9 is similar to FIGURE 8 showing the maximum reduction in .the radius by means tot the main cam. The machine of the present invention is for the bottom sealing of cartons and the like. Corrugated paper packing .cartons having four walls, top side and end flaps and bot-tom vside and end flaps are supplied by the manufacturer in' ilats, with the open cornerr suitably secured to`- gethen lust before use, the flat is opened .to rectangular tubular form for presentation to .the sealing machine. A carton is put on the mandrel of the machine intelescopic manner, with the top aps iirst. The bottom end flaps are Vfolded against and held on the machine ,and are rotated about a single axis and in the rotation of the box, the bottom end aps are glued, the bottom side flaps are rfolded .and then pressure-sealed.

The carton sealing machine tot this invention is constiucted with a pair of A frames generally designated 20. The A frames each have the usual cross stiffeners Z1 which are placed son the outer surfaces so as not to inter- :Eere wit-h the space between. The A frames 20 are spaced apart trom each other and mounted on -a base 22. At the apex of the pair of A frames 20, the main rotating shaft 23 is journaled as at 24. The shaft 23 represents the transverse rotating axis for the entire operation or the machine. Secured to the hub of the shaft 25 for rotation therewith are two opposite-ly disposed, radially extending arms 26, each set of lfour arms 26 carries an outwardly :directed langle member 27. Fitted over in telescopic relation at the ends of each .of these arms 26 is a. carton mandrel 28. The carton mandrel is approximately the same size and shape as the inner dimensions of the carton which are to be bottom sealed. The corners of the top face (which corresponds with the bottom of the carton) are shaped angularly as at 30 to assist in the piacement of the carton thereover in precise squareness and to secure the proper registration and positioning of the carton. It will also be observed that the outer tace of the mandrel 28 has -tWo transverse plates 3-1 and 31a which approximate the size and shape of the bottom end -aps ofthe carton. Adjacent each side of these outer plates 31 and 31a are spring loaded clips 32 which are adapted to engage the inner edge of the end aps of the carton in a manner to be explained hereafter. Each mandrel is provided with four sets :of wheels 33 which guide on the edge 'outwardly extending leg 27 of the L-shaped members l26 so that the mandrel will ride radially inwardly and outwar-diy on said wheels 33 in the `track edges 27. Within the mandrel form, the mandrel is connected to a tension spring 34 which spring is attached to its other end to the main arm 26. Thus, when the'mandrel moves inwardly on the tracks 26, the tension is relived by compression against spring 34. Tlhus, when the compression is released t-he tension on spring 34 will pull the mandrel back to the radially extended positionshown in FIGURE 6.

Also secured to the hub .25 for rotation with the shaft 23, are two cam follower arms 35 and 35a which are spaced exactly 180 from each other. The peculiar shape of the arm 3S is necessary so Ithat it :does not interfere in any way with the putting on or taking off of the carton, or. any phase of its rotation in the machine. At the outer end :of lthe arms 35 and 35a is mounted rotating cam follower wheels -36 and 36a respectively. The cam follower wheel 36 in each instance, engages the outer peripheral edge surface .of the cam 37. Cam 37 is a stationary plate secured by bolts 38 or in any other suitable manner, to the two legs of one of the A frames 20. tln this mann-er, the cam is held securely in position. 'Ihecam is cut with an internal grec-ved slot 4t) so that it may be rotated slightly in a vertical plane in either direction to secure the proper timing relationship required for the maohines operation. lllhis -timing relationship is important because the cam 37 on lits outer yface is circular and concentric with vthe axis of the shaft Z3, except in one instance. A hump is provided which commences at approximately 3 oclock, reaches lits maximum at substantially 4:30 and returns to the circular form at approximately 5:30a YAs will be explained later, the hump 41 :on the outer peripheral surface Iof cam 37 controls the in-and-out movement off the mauidrel 28 andthe movement thereof on the wheels 33 guided by the tracks 27. It will be observed 'that each of the cam followers 36 and 36a will pass over the outwardly 'exten-ding hump 41 of cam 37 fonce each revolution and exactly =l80 out of phase with each other. Cam 37 is also provided with an inner face 43 against which the cam ctollower44 is held in resilient engagement. Cam 44 is held in resilient, but oiset engagement with respect to a bar locking means 45 which is attached to and rotates with the shaft 23. When the timing bar 45 in its rotation (which is clockwise with respect to FIGURE 1 and counter-clockwise with respect to FIGURE 4) reaches from the horizontal center line 46 and at another point exactly l180" therefrom, the locking tip 47 will engage a locking catch 48. At the same time, the cam follower 44 come to rest against a stop 50, since the machine is designed to rotate only one-half a turn at each step, the cam `face 43 is provided with two such stops 50, 1807 out of phase from each other, and two locking devices or catches 48. Thus, although the arm rotates only once, it wilil be stopped and started twice during a single rotation. The spring 51 on the llatch detent 48 is heavy enough so that the whole machine will be stopped positively at the end of each half rotation.

At the forward end of the base y22 `and midway between the spaced A frame members 20, is a glue pot generally designated 52. The glue pot is substantially rectangularly shaped and is resiliently mounted at each of its four corners on springs 53 in yorder to accommodate any 'ir,

regularities of pressure .or variations in the thickness of the corrugated board tof the boxes. The -gilue pot has a false bottom 54 in which are mounted heating elements 55 and these in turn are connected through electric terminals to a source of electric power for purposes of keeping the glue hot. Beacuse of the necessity of keeping the glue at a constant temperature, a thermostat (not shown) may be included in the circuit. Also, the glue pot 52 has suitably insulated sides and bottoms as at 57 `to help keep the glue therein at constant temperature. Under certain conditions it is only necessary to mount the glue pot resilient-ly as at 53 at its outer end (see FIGURE l). `ln this manner, the expansion spring tends to keep the outer end of the glue pot elevated for reasons which will become apparent later on. Mounted transversely in the glue pot with a substantial portion thereof exposed above its top, is a glue rol-l 58. This is the usual cylindrical 1for-rn and rotates on the stub shaft 66 which is journaled in the sides of the glue pot 52 4as at 61.v =Carried on the outer end of the shaft 68 adjacent one of the outer sides of the glue pot 52, is a drive sprocket 61a. It is apparent Ithat as the glue roll 58 rotates in a clockwise direction (see FIGURES 8 and 9), it picks up iglue on its outer surface.

The drive for the machine is as follows: motor 62 drives to a larger pulley 63. On the shaft 64 rotated by the pulley 63, is a small sprocket 65. 66 drives a large sprocket 67 which is mounted for rotation on the shaft 68. Shaft 68 has a small sprocket 70 mounted for rotation therewith at the opposite end and just inside one of the A frame members 201. A small sprocket 70 and chain 71 drive a larger sprocket keyed to the shaft 23 which sprocket 72 rotates the shaft 23, and by this means rotates the wh-ole moving equipment. rIihe chain 66 passes over sprocket 73 to drive it in .the opposite direction and rotate the shaft 74. Shaft 74 has mounted for rotation with it,

the small sprocket 75 which through chain 76 rotates the i sprocket 77 which is keyed to the shaft 60 journaled in the yglue pot 52 to rotate the glue roller 58. Since the motor 62 rotates continuously, all of the chains and gears` move continuously with the exception of sprocket 70,

chain 71 and sprocket 72. The gear or sprocket 70 is coupled to a clutch mechanism (not shown) so that when the foot tread-le is pressed 'by the operator the clutch engages and causes the sprocket 70 to rotate one-halfturn and then shut oif. This causes the shaft 23 to rotate onehalf turn and all of the mechanism carried by the shaft. The shut-olf corresponds with the time and location of the locking bar 45 when it is stopped by the latch detent 48 simultaneously with the cam follower 44 meeting the stop 50.

Adjustably attached at each end of the shaft 23 onthe outside of the A frame members are a pair of irregularly shaped cams 80. The cams 80 are secured on the shaft 23 for rotation therewith by mounting couplings 78. Secured to the front legs of each A frame as at Slis a bracket 82 which .pivotally mounts a bell crank member 83, which member pivots about the pivot pier 84. At the outer apex or elbow of the bell crank 83 is a rotating caml follower 85 which 'bears against the peripheral irregular surface of the cam 80'. Secured to the other leg of the bellV crank 83 is a piston 86. The piston 86 reciprocates in response to the action and movement of the cam follower in following its travel arotmd the peripheral edge of the cam 80'. .On the rearward legs of each A frame is another bracket l87 which is lsecured thereto in any suitable manner. This bracket 87 carries a pivoting stub shaft 88. A `Yshaped pressure element 9i) carrying a pair of pressure pads 91 at the extremities of the Y, is

mounted for pivotal Irotation with the stub shaft 88. The

Y-shaped pressure frame has lan extension at its upper end for lapped rotating engagement with the piston 86;

This extension is 92. In the stopped position, which is in the northeast quadrant 40 above the horizontal 46,Y the Y-shaped pressure element "96 is in open position and the piston rod 86 is directly axially aligned with the stopping point so -that the position Ishown in FIGURE 1 is the loading position.

lt will be observed that as the cam 80 rotates, the cam follower 85 is depressed, causing the piston to move angularly downward, as shown in the broken lines of FIG- URE 3, pivoting the Y-pressure members 90= inwardly on their respective pivots 88 toward each other, and to move upwardly in lan arc of substantially 90.

Operation The ope-ration of the device is substantially as follows: although not shown in FIGURE l, the starting position is actually the angular Aaxis indicated by the line 95 in the northeast quadrant above the horizontal axis '46 Where the outline of the mandrel is shown in broken lines. The mandrel 28 is presented Aat an angle in this starting position so that the operator can open 4the four-sided carton 160 and easily slip .over the same onto the mandrel in a very quick and simple movement. Cartons are supplied by the manufacture-r in iiats as before stated. The cartons 100 have top side flaps itil and -top end flaps 152 as well as bottom side flaps il and. bottom end flaps 164. The operator opens the flats to substantially rectangular tubular position 'and slips this tube telescopically over thev mandrel with the side and end top flaps. first. The mandrel 28 brings the carton into properly squared position. As indicated before, the cut-off corners Sit on the top plates of the mandrel prevent any catching of the box on the corners, speed the telescoping of the carton over the mandrel, and assist in the squaring of the Sarne on the mandrel. In the same movement that the operator places the carton telescopically over the mandrel 2S, he folds down the lbottom end flaps 104 ofthe carton liti) onto the pads 31 and 31a so that the inner edges of the end flaps engage the locking means 32a to hold them flat against the plate. When this is complete, the operator presses the foot treadle (not shown) and the arms. 26 begin their rotation clockwise as viewed in FIGURE l. It is to be remembered that all of the earn followers and cams begin to function as soon las the machine is started and the clutch engages the sprocket 7b to start the rotation. It is obviously necessary for the glue roller 5S :to contact the bottom end flaps 164 of the carton 100' in order to apply a film of glue thereto. Contact must -be maintained with some pressure Vand continuously. The fiat outer surface ofthe mandrel with the end aps at against it travel in an arc with the face at its center point at a tangent to the arc of rotation and the bottom side flaps 108 pass in a substantially vertical plane at either side of the gluing pot 52. Accordingly, the radius to the corners is greater than the radius at'the center. Thus, if the pressure of the roll -was set for the radius which is suicient to let the corners pass, obviously there would be no glue applied except at a ysmall portion of the entering edge and a small portion adjacent the trailing edge. Thus, the travel ofthe carton on the mandrel has to |adjust for the difference in radius. As the leading corner of `the carton approaches the glue roller 58, the cam follower 36 (or 36a) encounters the beginning of the hump 41 on the cam 3'7. This forces the mandrel to move upwardly on its tracks 26 and roller 32, to relax the spring 34 and to make the radius equal to the radius at the tangent. Thus, all of the front or leading bottom end flap '164 of the carton 100 is contacted by the face of the glue toller SS. The holddown clips 32a, of course, are spaced outwardly to a point so that they do not interfere with the action of the gluing bythe roller 5S. As the movement continues, the cam follower 36 (or 36a) reaches the summit of the hump 41 on the cam 37 which of course represents the minimum radius or the radius at the tangent, i.e., the radius at the center line. As the trailing bottom end iiap 194 of the carton le@ presents itself to the gluing, the radius has again to be reduced and this is done by the cam follower Y3:6 tnaveli-ng down the opposite side of the hump 41 where the spring 34 takes over and pulls the mandrel back to its extended position.

Just after the gluing of the trailing bottom end flap 104, it will be observed that the cams 80 and the pistons 86 are substantially in the open position shown in FIG- URE l. As the cam follower traveling on the penirneter of cam 80 is depressed by the rotation of the cam 80, the .piston 86 is also moved axially downward along the line defined by numeral 95, causing the pads 91 to engage the bottom side flaps 103 and lfold them into position against the glued faces of the bottom end flaps 104. When the machine reaches the position defined lby the line 9S, having completed of rotation, the clutch cuts out the power which stops the rotation andy simultaneously the latch member 47 on arrn 45 engages the appropriate latching detent 48. At this time, the pads 91 are in full pressure against the bottom flaps causing the locking means 32a on the mandrel top plate to disengage so that the sealed box is held on to the mandrel only by the pressure pads 91. Sui'licient residence time is provided to allow the glue to set before starting the second 180 rotation. This time is usually provided by the length of time it takes an operator to secure a carton flat, open it and telescopically slip it over `the mandrel. The moment the treadle is pressed by the operator to engage the power and clutch mechanism the 180 cycle is repeated to complete the 360 rotation. Thus, two lboxes are bottoni glue sealed with every complete rotation. It should be stated that as a cycle is started `the cam 80 rotates to cause the Y-shaped holding meansV to release immediately and permit the bottom sealed carton to fall freely from the mandrel.

We claim:

1. Apparatus for receiving a partially completed paper Y carton having the four sides thereof connected to form the rectangular body portion, each of said sides having connected thereto along substantially the length and -width thereof closable top and bottom side and end flaps, said apparatus comprising a beam rotatably supported on a shaft located at right angles thereto and substantially at the midpoint thereof, each of the two ends of said beam hav-ing mounted thereon box supporting means for receiving therearound said rectangular body portionv of said carton in a position such that two sides of said body portion define vertical'planes and for thereafter preventing the bottomcarton ilaps, `farthest from :said horizontal shaft, from being folded inwardly beyond their positions of normal closure, a stationary container `for liquid adhesive having lan associated-adhesive applicator so located that upon rotation of said beam with said carton when the two bottom end flaps are maintained in approximately the position of normal closure Isaid applicator will contact the external surfaces of sai-d flaps andr accommodate to the various radii, means for rotating said beam, means for maintaining said bottom end flaps in approximately the position of normal closure at least until contact with said applicator, offset reciprocal means at either side of the plane of rotation for folding the remaining two-fbottom side iiaps over and into contact with the two glued bottom end iiaps, Iand means for supporting said Abeamsupporting horizontal shaft.

, 2. Apparatus for receiving a partially completed paper carton having the four sides thereof connected to form the rectangular body portion, each of said sides having connected thereto along substantially the length and width thereof closable topI and bottom side and end flaps, said apparatus comprising ak beam rotatably supported on aV shaft located at right angles thereto and ,substantially at the midpoint thereof, eachof the two ends of said beam having mounted thereon box supporting means :for receiv-v ingl therearound said rectangular body portion of said carton in a position such that two `sidesof said :body portion define vertical planes and `for thereafter preventing the 'bottom carton flaps, farthest from said horizontal shaft, from being .folded inwardly beyond their positions of normal closure, means for mounting `said box supporting means on said beam for limited axial movement, a stationary container yfor liquid adhesive having an associated adhesive applicator so located that upon rotation of saidrbeam with said carton when the two bottom end flaps are maintained in approximately the position of normal closure said applicator will contact the external surfaces of said flaps, means for rotating said beam, means responsive to the rotation of said beam lfor moving the box supporting means axially inward and outward, means for maintaining said .bottom end flaps in approximately the position or' normal closure at least until contact with said applicator, offset reciprocal means at either side of the plane of rotation for folding the remaining two bottom side liaps over and into contact with the two glued bottom end ilaps, `and means for supporting said beam-supporting horizontal shaft.

3. Apparatus for receiving a partially completed paper carton having the -four sides thereof connected to form the rectangular body portion, each of said sides having connected thereto along substantially the length and width thereof closable top` and bottom side and end flaps, said apparatus comprising a beam rotatably supported on a shaft located at right langles thereto and substantially at the midpoint thereof, each of the two ends of said vbeam having mounted thereon box supporting means for receiving therearound said rectangular body portion of said carton in a position such that two sides of said body portion denne vertical planes and for thereafter preventing the bottom carton flaps, farthest from said horizontal shaft, from being folded inwardly beyond their positions of normal closure, a stationary container for liquid adhesive having an associated adhesive applicator so located that upon notation of said beam with said carton when the two bottom end iiaps are maintained in approximately the position of normal closure said applicator will contact the external surfaces of said flaps, means for rotating said beam in cycles of 180, means responsive to the rotation of said beam in said cycle 'for moving the box supporting means axially inward and outward, means for maintaining said botto-m end fia-ps in approximately the position of normal closure at least until Contact with said applicator, offset reciprocal means at either side of the plane of rotation for folding the remaining two bottom side flaps over and into contact with the two glued bottom end tlaps and holding pressure thereon at the end of each cycle until the adhesive is set and the bottom secured, and means for supporting said beam-supporting horizontal shaft.

4. A portable flap closing and sealing machine lfor a carton hav-ing fo-ur body panels all joined together, and having integral top and bottom side and end flaps, comprising in combination a pair of spaced side-by-side frame members secured to a base, a substantially horizontal shaft journaled transversely between said frame members, arms extending radially from sa-id shaft and oppositely mounted thereon for symmetrical rotation in a vertical plane between said frame members, yan element mounted at each end of said arms for receiving a carton thereon in telescopic relation, with the bottom side and end naps projecting radially outward from the outer at face of said element, means associated with said element for releasably holding the bottom end flaps against the outer flat 'face of -said element, power operated means for effect-ing a 180 rotation cycle of said arms to a stop, a 'gluing mechanism disposed in the path of rotation of said elements, said gluing mechanism being yieldably mounted with a glue roller Ifor contacting `the outer faces of the end flaps of said carton adjusting to the various radii as it is moved past, releasing offset pressure means at either side of the plane of rotation reciprocally synchronized with the 180 rotation to engage the bottom side flaps of said carton, fold them against the glued surfaces of the end aps and hold them with sucient pressure until the glue sets and then to release.

5. A .portable ilap closing and sealing machine for a carton having four body panels all joined together, and having inte-gral topi and bottom side and end llaps, comprising in combination, a pair of spaced side-by-side frame members secured to a base, a substantially horizontal shaft journaled transversely between said frame members, arms extending radially from said shaft and oppositely mounted thereon for symmetrical rotation in a vertical plane'between said frame members, a mandrel mounted at each end of said arms for receiving a carton thereon in tele- -scopic relation, :with the bottom side and end flaps projecting radially outward from the outer flat face of said mandrel, means associated with said mandrel for releasably holding the bottom end flaps against the outer at face of said mandrel, power operated means for effecting a rotation cycle of said 4arms to a stop, a gluing mechanism disposed in the path of rotation of said mandrel, said gluing mechanism being yielda-bly mounted with a glue roller for contacting the outer faces of the end flaps of said carton adjusting to the various radii as it is moved past, releasing off-set pressure means at either side of the piane of rotation reciprocally synchronized with the 180 rotation to engage the bottom side flaps ofsaid carton, fold them against the glued surfaces of the end aps and hold them against the outer surface of said mandrel at the conclusion of the 180 rotation, and means releasing and clearing the pressure means at the start of member-s secured to a base,a substantially horizontal sha-ft journaled transversely between said frame members, ar-nis l extending radially .from said shaft and oppositely mounted thereon for symmetrical rotation in a vertical plane kbe#i i f tween said fra-me members, a mandrel mounted at each ,j

end of said arms for limited radial movement axially with respect to said arms for receiving a carton thereon in telescopic relation, with the bottom side and end flaps projecting radially outward from the outer flat face of said mandrel, means associated with said mandrel for releas-V ably holding the bottom end flaps against the outer flat face of said mandrel, power operated means for eiecting a 180n :rotation cycle of said arms to a stop, a gluing A mechanism disposed in the path of rotation of said mandrel, said gluing lmechanism being yieldably mounted with a glue roller for contacting the outer :faces of the end flaps of said carton as it -is moved past, means associated with the rotation cycle means formoving the mandrel'inwardly and outwardly to maintain the proper radii for the application of the glue on the said bottom end ilaps, releasing pressure means synchronized with the 180 rotation to engage the bottom side flaps of said carton, fold them against the glued surfaces of the end flaps and hold them against the outer surface of said mandrel at the conclusion of the 180 rotation, and lmeans releasing and clearing the pressure means at the start of the next cycle of 180 rotation to permit the bottom sealed carton to be released from the mandrel of the machine.

7. A portable ap closing and sealing machine as set forth in claim 6, further characterized in that theglue applying means is provided with a yieldable mounting and is :biased to its projected position so that the glue is applied face of said supporting member while rotating the sarne, presenting the folded bottom end flaps during said rotation to a glue applicator :for applying glue to the exposed surface of said bottom end flaps, varying the radius of the carton supporting member during rotation to secure the application Iof glue over .most of the surface of said bottom end aps, folding said bottom side flaps toward the glued surfaces during rotation and externally supporting the carton on said supporting member `during such travel, pressing the lfo-lded bottom side flaps against the glued areas of the `bottom end aps during a dwell in the l@ rotation to seal the same together with the carton supporting member maintaining the precise rectangular shape of the carton, resuming the rotation to release the pressure `from the bottom 4sealed carton, and `delivering the same 5 `ready `for paoking.

Beardsley July 14,1903 Kuhlmann Apr. 26, 1910 

1. APPARATUS FOR RECEIVING A PARTIALLY COMPLETED PAPER CARTON HAVING THE FOUR SIDES THEREOF CONNECTED TO FORM THE RECTANGULAR BODY PORTION, EACH OF SAID SIDES HAVING CONNECTED THERETO ALONG SUBSTANTIALLY THE LENGTH AND WIDTH THEREOF CLOSABLE TOP AND BOTTOM SIDE AND END FLAPS, SAID APPARATUS COMPRISING A BEAM ROTATABLY SUPPORTED ON A SHAFT LOCATED AT RIGHT ANGLES THERETO AND SUBSTANTIALLY AT THE MIDPOINT THEREOF, EACH OF THE TWO ENDS OF SAID BEAM HAVING MOUNTED THEREON BOX SUPPORTING MEANS FOR RECEIVING THEREAROUND SAID RECTANGULAR BODY PORTION OF SAID CARTON IN A POSITION SUCH THAT TWO SIDES OF SAID BODY PORTION DEFINE VERTICAL PLANES AND FOR THEREAFTER PREVENTING THE BOTTOM CARTON FLAPS, FARTHEST FROM SAID HORIZONTAL SHAFT, FROM BEING FOLDED INWARDLY BEYOND THEIR POSITIONS OF NORMAL CLOSURE, A STATIONARY CONTAINER FOR LIQUID ADHESIVE HAVING AN ASSOCIATED ADHESIVE APPLICATOR SO LOCATED THAT UPON ROTATION OF SAID BEAM WITH SAID CARTON WHEN THE TWO BOTTOM END FLAPS ARE MAINTAINED IN APPROXIMATELY THE POSITION OF NORMAL CLOSURE SAID APPLICATOR WILL CONTACT THE EXTERNAL SURFACES OF SAID FLAPS AND ACCOMMODATE TO THE VARIOUS RADII, MEANS FOR ROTATING SAID BEAM, MEANS FOR MAINTAINING SAID BOTTOM END FLAPS IN APPROXIMATELY THE POSITION OF NORMAL CLOSURE AT LEAST UNTIL CONTACT WITH SAID APPLICATOR, OFFSET RECIPROCAL MEANS AT EITHER SIDE OF THE PLANE OF ROTATION FOR FOLDING THE REMAINING TWO BOTTOM SIDE FLAPS OVER AND INTO CONTACT WITH THE TWO GLUED BOTTOM END FLAPS, AND MEANS FOR SUPPORTING SAID BEAMSUPPORTING HORIZONTAL SHAFT. 